Dynamic fluid delivery system with compensation
First Claim
Patent Images
1. A method of controlling an HVAC system having a plurality of zones, wherein each zone includes one or more zone dampers, the method comprising the steps of:
- determining an open/closed state of at least some of the zone dampers; and
adjusting an open time for at least selected zone dampers based on the state of the at least some of the zone dampers.
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Abstract
Flow is managed within a fluid delivery system such as an HVAC system. In one illustrative embodiment, a method is provided for controlling the airflow and thus the heat delivery rate to a room serviced by an HVAC system. The HVAC system includes a duct system that is in fluid communication with a room through a damper or the like. Other embodiments are also disclosed.
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Citations
32 Claims
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1. A method of controlling an HVAC system having a plurality of zones, wherein each zone includes one or more zone dampers, the method comprising the steps of:
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determining an open/closed state of at least some of the zone dampers; and
adjusting an open time for at least selected zone dampers based on the state of the at least some of the zone dampers. - View Dependent Claims (2)
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3. A method of regulating an HVAC system that includes a duct system having a damper, the method comprising the steps of:
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opening the damper; and
leaving the damper open for an open time period, wherein the open time period is dependent on a heat delivery rate through the damper. - View Dependent Claims (4, 5)
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6. A method of controlling thermal energy delivery to a zone within an HVAC system having two or more zones, wherein airflow to at least selected zones is controlled by one or more zone dampers, and wherein the thermal energy provided by the HVAC system to each of the zones is dependent on the open/closed state of at least some of the other zone dampers, the method comprising the steps of:
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opening a zone damper;
leaving the zone damper open for an open time period, wherein the open time period is dependent on the state of one or more other zone dampers. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of managing an HVAC system having two or more zones, wherein each zone includes at least one zone damper, the method comprising the steps of:
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determining a measure of thermal demand for a zone;
determining a measure of available thermal energy for the zone; and
operating a damper within the zone in accordance with the thermal demand and the available thermal energy. - View Dependent Claims (16, 17, 18)
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19. A method of dynamically controlling an HVAC system having two or more zones, each zone having one or more zone dampers, the method comprising the steps of:
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selecting a zone from the two or more zones;
determining a measure of thermal demand for the selected zone;
determining a measure of available thermal energy for the selected zone; and
calculating an operational profile for the selected zone based on the measure of thermal demand and the measure of available thermal energy;
wherein the operational profile provides open and close times for the one or more zone dampers for the selected zone. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method of controlling thermal energy delivery in a system comprising a plurality of zones, the method comprising the steps of:
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selecting a zone based on its thermal demand;
calculating a zone open time based on the thermal demand of the zone;
determining a status of each of the zones within the multi-zone system;
calculating a compensation value based on the status of each of the zones; and
adjusting the zone open time as a function of the compensation value. - View Dependent Claims (27, 28, 29, 30)
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31. A method for controlling the opening and closing of a damper in an HVAC system, wherein the damper is coupled to a duct that delivers air to the damper, and wherein the duct is fluidly connected to one or more other dampers and/or valves that can assume open and closed positions, the method comprising the steps of:
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opening the damper for a length of time;
closing the damper after the length of time; and
wherein the length of time is dependent on the position of at least one of the other dampers and/or valves that is fluidly connected to the duct.
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32. A method of controlling an HVAC system that includes a duct system, wherein the duct system has a pressure when the HVAC system is operating, the method comprising the steps of:
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activating the HVAC system to supply condition air into the duct system; and
continuing to operate the HVAC system in a continuous manner for an operating time period, wherein the operating time period is dependent, at least in part, on the pressure in the duct system.
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Specification